Fei flyingxu

The introduction to Reactive Programming you've been missing

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	// ES7, async/await
	function sleep(ms = 0) {
	return new Promise(r => setTimeout(r, ms));
	}

	(async () => {
	console.log('a');
	await sleep(1000);
	console.log('b');
	})()

	public static Task<byte[]> WaitData(this SerialPort serialPort, TimeSpan timeout, byte[] request)
	{
	var tcs = new TaskCompletionSource<byte[]>();

	SerialDataReceivedEventHandler handler = null;
	Timer timer = null;

	handler = (sender, e) =>
	{
	var package = serialPort.ReadPackage();